Optical properties and molecular composition of wintertime atmospheric water-soluble organic carbon in different coastal cities of eastern China
文献类型：期刊论文
| 作者 | Chen, Haibiao8; Yan, Caiqing7,8; Fu, Qinglong9; Wang, Xinfeng8; Tang, Jiao5,6; Jiang, Bin5,6; Sun, Honglei8; Luan, Tiancheng8; Yang, Qiaoyun4; Zhao, Qianbiao3 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-09-20 |
| 卷号 | 892页码:12 |
| 关键词 | WSOC Light-absorbing properties Fluorophores FT-ICR MS Marine air masses Organohalogen compounds |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2023.164702 |
| 英文摘要 | To evaluate the optical properties and molecular composition of water-soluble organic carbon (WSOC) in the atmosphere of coastal cities, particle samples were collected in Tianjin, Qingdao and Shanghai, three coastal cities in eastern China. Subsequent analysis by ultraviolet visible and fluorescence spectrometer and electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry were performed. The results showed that the concentration levels and light absorption ability of WSOC decreased from the north to south cities, ranking as Tianjin > Qingdao > Shanghai. Three major fluorescent components including less-oxygenated humic-like substances (52-60 %), highly-oxygenated humic-like substances (15-31 %) and protein-like substances (17-31 %) were identified in WSOC based on the fluorescence spectroscopy and parallel factor analysis, which might be closely related to anthropogenic emissions and continental sources as well as secondary formation processes. Five subgroups of molecular components were further identified in WSOC, including the predominant CHON compounds (35-43 %), sulfur-containing compounds (i.e., CHONS and CHOS compounds, 24-43 %), CHO compounds (20-26 %) and halogen-containing compounds (1-7 %). Compared to marine air masses influenced samples, WSOC affected by continental air masses exhibited higher light absorption coefficients and generally had a higher degree of aromaticity and unsaturation, as well as contained more molecular formulas of WSOC, especially enriched with sulfur-containing compounds. In contrast, relatively more abundant halogen-containing compounds were identified in the marine air masses influenced samples. Overall, this study provided new insights into the light-absorbing and chemical properties of WSOC in coastal cities, especially under the influences of continental and marine air masses. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001032956200001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74490]  |
| 专题 | 中国科学院广州地球化学研究所 |
| 通讯作者 | Yan, Caiqing |
| 作者单位 | 1.Peking Univ, Coll Environm Sci & Engn, B ESAT, Beijing 100871, Peoples R China 2.Peking Univ, Coll Environm Sci & Engn, SKL ESPC, Beijing 100871, Peoples R China 3.Nanjing Univ, Acad Environm Planning & Design Co Ltd, Nanjing 210093, Peoples R China 4.Tianjin Med Univ, Sch Publ Hlth, Dept Occupat & Environm Hlth, Tianjin 300070, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Uti, Guangzhou 510640, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 7.Shanghai Acad Environm Sci, State Environm Protect Key Lab Format & Prevent Ur, Shanghai 200233, Peoples R China 8.Shandong Univ, Environm Res Inst, Qingdao 266237, Peoples R China 9.China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Haibiao,Yan, Caiqing,Fu, Qinglong,et al. Optical properties and molecular composition of wintertime atmospheric water-soluble organic carbon in different coastal cities of eastern China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,892:12. |
| APA | Chen, Haibiao.,Yan, Caiqing.,Fu, Qinglong.,Wang, Xinfeng.,Tang, Jiao.,...&Xue, Likun.(2023).Optical properties and molecular composition of wintertime atmospheric water-soluble organic carbon in different coastal cities of eastern China.SCIENCE OF THE TOTAL ENVIRONMENT,892,12. |
| MLA | Chen, Haibiao,et al."Optical properties and molecular composition of wintertime atmospheric water-soluble organic carbon in different coastal cities of eastern China".SCIENCE OF THE TOTAL ENVIRONMENT 892(2023):12. |
入库方式： OAI收割
来源：广州地球化学研究所
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